Spirocrinus

No picture of Spirocrinus was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Spirocrinus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
PetalocrinidaePBDB
Diet
suspension feederPBDB, for Cladida
Life habit
intermediate-level epifaunalPBDB, for Cladida
Motility
stationary, attachedPBDB, for Cladida
Vision
blindPBDB, for Crinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At most 7.6 million years on record.

Every occurrence read is dated to somewhere between 440.5 Mya and 432.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Silurian — about 2 of 2 occurrencesSilurian441–440 Mya — about 0.0 occurrences440–440 Mya — about 0.2 occurrences440–440 Mya — about 0.2 occurrences440–440 Mya — about 0.2 occurrences440–439 Mya — about 0.2 occurrences439–439 Mya — about 0.2 occurrences439–439 Mya — about 0.2 occurrences439–438 Mya — about 0.1 occurrences438–438 Mya — about 0.1 occurrences438–438 Mya — about 0.1 occurrences438–438 Mya — about 0.1 occurrences438–437 Mya — about 0.1 occurrences437–437 Mya — about 0.1 occurrences437–437 Mya — about 0.1 occurrences437–436 Mya — about 0.1 occurrences436–436 Mya — about 0.1 occurrences436–436 Mya — about 0.1 occurrences436–436 Mya — about 0.1 occurrences436–435 Mya — about 0.1 occurrences435–435 Mya — about 0.1 occurrences435–435 Mya — about 0.1 occurrences435–434 Mya — about 0.1 occurrences434–434 Mya — about 0.1 occurrences434–434 Mya — about 0.1 occurrences434–434 Mya — about 0.1 occurrences434–433 Mya — about 0.1 occurrences433–433 Mya — about 0.1 occurrences433–433 Mya — about 0.0 occurrences441 Mya432.4 Mya

2 occurrences of Spirocrinus on record, most of them in the Silurian. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

2 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Found in

2 formations

Leijiatun — 28.00°N, 108.00°EShihniulan — 28.98°N, 107.08°E

Loading coastlines…

The named rock units Spirocrinus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Spirocrinus and its relatives

Silurian

Where Spirocrinus and its relatives were recorded in the Silurian.

Found in the same rock

42 taxa

The Paleobiology Database records 1 site for Spirocrinus, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

2 references

Each of the 2 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content0

No picture of Spirocrinus was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Spirocrinus, or no answer at all. This entry cannot say which.

No 3D scan of Spirocrinus was found in MorphoSource and Sketchfab.

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPetalocrinidae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Mu and Wu 1974